Machine for hulling peas, beans, and the like.



L. C. YOUNG.

MACHINE Eon HULLING PEAS, BEANS, AND THE LIKE.

APPLICATION FILED JUNE 6. I916 Patented Sept. 25, 1917.

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LAURENCE C. YOUNG, 0F MONTGOMERY, ALABAMA, ASSIGNOR 03'? ONE-HALF TOMERRILL n. PRATT,

OF PRA'ITVILLE, ALABAMA.

MACHINE FOR HULL ING PEAS, BEANS, AND THE LIKE.

Patented Sept. 25, 1911 Z.

Application filed June 6, 1916. Serial No. 101,971..

To all whom it may concern: 1 7 Be it known that I, LAURENCE C. YOUNG, acitizen of the United States, residing at Montgomery, in the county ofMontgomery and dtatc of rilabama, have invented certain new and usefulImprovements in Machines for Hulling Peas, Beans, and the like; and I dohereby declare the following to be a full, clear, and exact descriptionof the same, reference being had to the accompanying drawings, formingpart of this specification.

The object of this invention is the provision of an improved machine forhulling peas, beans and the like, in which the IlllX- ture of hulls andpeas, for example, is delivered to a separating chamber and theresubjected to the action of a blast directed vertically against themixture to separate the hulls from the peas.

Other obj ectsof the invention will appear from the ensuing detaileddescription, when taken in connection with the accompanying drawingswhich illustrate a structural embodiment of the invention in a preferredform. The novel features of the invention will be particularly pointedout and specitied in the claims at the end of the specification.

In the drawings Figure 1 is a side sectionalelevation of a machineconstructed in accordance with the present improvements. 1

Fig. 2 is a section taken through the hulling mechanism on the line 22of Fig. 1.

Fig. 3 is a section taken on the line of Fig. 1 looking downwardly onthe separating chamber.

Like characters of reference in the several figures indicate the sameparts.

The machine illustrated in the accompanying drawings is designed moreparticularly for hulling and separating peas, or beans, although it willbe understood that it may be applied with equal facility to otheranalogous uses, and no limitation to the scope ofthe invention in thisrespect will be implicated. As shown, the upper end of the frame 1, isprovided with a delivery hopper 2 into which the unhulled pods are deposited. Communicating with the lower end of the delivery hopper 2 18 apassage 3, through which the unhulled pods are directed to the hullingmechanism. In the present embodiment, the delivery of the pods to thehulling mechanism is preferably accomplished by means of suction,whereby the dust and dirt may be carried off so that the pods aredelivered in clean condition to the hulling mechanism. For this purpose,an air passage 4 is positioned just to the rear of the discharge opening5 of the delivery passage, the air passage t comn'mnicating by means ofan inclined passage 6, with the suction end of a blower 7. At the openend of the passage 4 behind the discharge opening for the pods is ascreen 8 which prevents the pods from being carried through the passage4: and permits only the dust and dirt to be carried off. The force ofthe air passing through passages 4: and 6 may, if desired, be reduced bya retarding plate 9 positioned in passage 4; behind screen 8. Thisretarding plate evens up the blast passing through the screen andprevents leaves and trash from being held against the same by the blast.

The pods pass through the discharge opening 5 to the hulling mechanismlocated directly below. In the present instance, the hulling mechanismconsists of a revolving beater roll 10 having peripheral teeth 11 whichpass through the spaces between stationary teeth 12, as shown moreparticularly in Fig. 2 of the drawing. teeth are mounted on a curvedsupporting plate 13, which extends around the lower half of theperiphery of the beater roll and upwardly in the rear toward the innerend of the discharge opening 5, as shown in Fig. 1. The shaft 14 of theroll is driven in the direction indicated by the arrow, in Fig. l, andduring rotation of the roll the pods are carried around between therotat ing and stationary teeth, thereby crushing the pods and liberatingthe peas.

In front of the roll is a downwardly inclined delivery chute 15 on whichthe mixture of hulls and peas is deposited by the roll and whichdelivers the mixture to the separating chamber, wherein the mixture issubjected to the action of a blast directed vertically against it. Theemployment of a vertical blast for separating the hulls from the peas isan important improvement because the blast is applied directly beneaththe hulls deposited in the separating chamber, carrying them upwardly,while the peas, because of their greater weight and smaller size, fallthrough the chamber.

The stationary This is effected without blowing away'any of the peasalong with the hulls. Other machines, wherein the blast is directed atan angle against the mixture, are disadvantageous because, if the blastis strong enough to carry away the hulls, considerable numbers of thepeas are blown away with the hulls; it the force of the blast is reducedso as not to blow away the peas, some of the hulls are permitted to fallwith the peas and the machine chokes. With the vertical blast, however,the full power of the blast is applied directly underneath the mixtureof hulls and peas deposited in the mouth of the separating chamber, andthe result is that all the hulls are properly carried off withoutwasting any of the peas. Any unhulled pods, because of their heavierweight, will pass along with the peas, and may be separated from thepeas later on and again passed through the hulling mechanism.

The separating chamber 16 is provided with vertical side walls 17, asshown in Fig. 1, and the delivery chute 15 extendsdirectly to the mouthof the separating chamher. At the delivery end of the chute, andextending over the mouth of the separating chamber is a row of fingers18, these being spaced apart sufliciently to catch the hulls whilepermitting the peas to fall into the separating chamber. These fingersby retarding the movement of the hulls in their passage into theseparating chamber greatly assist the blast in the chamber in separatingthe hulls from the peas. The discharge outlet 19 for the hulls islocated adjacent the mouth of the separating chamber, and positionedover the discharge outlet is a curved deflecting plate 20 which extendsinwardly quite close down to the delivery chute 15 to prevent theseparated hulls from again mingling with the mixture on the deliverychute, and also to prevent loss of air.

If desired, the outlet 19 maybe connected with a suitable exhaust flue,not shown, for carrying the hulls away from the machine and out 01": thebuilding. The upper end of the outer wall of the separating chamber isprovided with a curved lip 21, which prevents any of the separated hullsfrom hanging on the end of the wall and insures a clean separation.

Because of their greater weight, the peas, and the unhulled pods fallthrough the The vertical blast in the separating chamher is suppliedthrough a passage 25 which connects the lower end of the separatingchamber with the discharge end of the blower 7. Side valves 26controlled by operating rods 27 permit a regulation of the quantity ofair, drawn in by the blower. As shown, the lower wall of the passage 25extends over the outletQl, preventing the blast from reaching the peaspassing into the outlet, as well as insuring the blast entering theseparating chamber with full force. Y

What is claimed is:

1. In a machine such as described, the combination with an air blastseparator and a fan inclosed by a casing and adapted to create a blastof air for said separator, a hulling mechanism, ahopper and deliverypassage for delivering pods to said hulling mechanism, a substantiallyvertical suction conduit having one end covered with mesh netting andadjacent said delivery passage and the other end connected to theexhaustend of said fan casing for creating suction in the delivery passagewhereby pods are drawnalong said delivery passage'to said hullingmechanism, and means for delivering the mixture of peas and hulls to theair blast separator.

2. In a machine such as described, the combination with an air blastseparator and a fan inclosed by a casing and adapted to create a blastof air for said separator, a hulling mechanism, a hopper and deliverypassage for delivering pods to said hulling mechanism, a substantiallyvertical suction conduit having one end adjacent said delivery passage,mesh netting covering said end of the suction conduit, a retarding platepositioned in said suction conduit adjacent said netting, and the otherend of said conduit being connected to the exhaust end of said fancasing for creating suction in. the delivery passagewhereby pods aredrawn along said passage to the hulling mechanism, and means fordelivering the mixture ofpeas and hulls to the air blast separator.

LAURENCE o. YOUNG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0.

